<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge,chrome=1">
    <meta name="author" content="李军锋">
    <title></title>
    <style>
        
      section{
          width: 700px;
          height: 280px;
            border: 1px solid black;  
           margin: 300px auto;
      }
     
      img{
          opacity: 0.1;
      }
      img:hover{
          opacity: 1;
      }
    </style>
</head>
<body>
    
   <section>
       <span><img src="img/1.jpg" alt=""></span>
       <span><img src="img/2.jpg" alt=""></span>
       <span><img src="img/3.jpg" alt=""></span>
       <span><img src="img/4.jpg" alt=""></span>
       <span><img src="img/5.jpg" alt=""></span>
       <span><img src="img/6.jpg" alt=""></span>
       <span><img src="img/7.jpg" alt=""></span>
       <span><img src="img/8.jpg" alt=""></span>
       <span><img src="img/9.jpg" alt=""></span>
       <span><img src="img/10.jpg" alt=""></span>
   </section>
    
</body>
</html>